Power amplifier chip: TPA3116D2 (With AM interference suppression function). Output power: Left and right channels ≤ 50W, subwoofer ≤100w. Applicable speakers: 20~100W, 4~8Ω. 1 x Amplifier Module Kit.
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1 x decoder Board. Bluetooth version 5.0. Support recording. Recording only supports operation in TF mode or USB mode. (Long press the MODE button to start recording, long press the MODE button again to cancel the recording and play the recorded file; exit the recording mode and long press the pause button to exit. ).
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1 x Bluetooth Amplifier Board. Number of channels: left and right dual channels (stereo). Black 2.0 Channel AK280 Mini HIFI Stereo Audio Power Digital Amplifier Speaker. 1 Thin Capacitive Touch Screen Stylus Pen for iPhone/iPad/Samsung Phone Tablet.
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Chip type: PAM8403. 1 Amplifier Board(Battery not included). Bluetooth version: 5.0. Number of channels: two-channel stereo. Function type: Audio amplification. Battery type: 18650(Not included). Output power: 2 3W.
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Bluetooth power amplifier board 3.3v-8v. Agnd: audio input ground. GND: power ground. VCC : +3.3V.
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Output power: 3W. This product adopts high-quality PCB circuit board, the board surface is flat and not easy to bend, long service life. Power socket interface: XH2.54 socket. The circuit board can be connected to only one speaker can not be divided into positive and negative.
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5: Support Wuzhi Audio APP. Support Wuzhi Audio APP. 1 Digital power amplifier board module. Bluetooth version: 5.1. Audio output: left channel 15W + right channel 15W. Audio input: BT+AUX+USB+USB sound card.
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Welding to achieve the lowest current sound. This grounding point can be tried at different positions. 1/2/5/10PCS 5V Bluetooth 5.0 Audio Module Mono Output Bluetooth Receiver. If there is current sound on the power amplifier board, it is caused by ground wire interference.
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